Teaching KVS Junior Secretariat Assistant (LDC) Mock Test 2022 Quantitative Aptitude Time and Work Pipe and Cistern
Pipe A and B can fill a tank in 10 hrs and 15 hrs respectively. Pipe C can empty the full tank in 5 hrs. If all three pipes opened together, then in how many hrs full tank will empty?
1
35 hrs
2
25 hrs
3
15 hrs
4
30 hrs